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ALFA IN a.s. ©
www.alfain.eu
OVERVIEW OF ROLLS FOR WIRE FEED
a
b
a = 22 mm
b = 30 mm
Groove type
Wire diameter
Item No
Steel
0,6-0,8
2187
0,8-1,0
2188
Aluminum
0,8-1,0
2270
Flux core
0,8-1,0
2318
1,0-1,2
2319
6. GETTING STARTED MIG/MAG
Getting started must be consistent with technical data and conditions of use.
CHOOSING THE FEEDING ROLL
In all machines (ALFA IN MIG / MAG) rolls with two grooves are used. These
grooves are intended for two different wire diameters (e.g. 0,8 and 1,0 mm).
Rolls for wire feed must comply with the diameter and material of the welding
wire. Only this way a smooth wire feed can be achieved. Irregularities of the wire
feed leads to a poor quality of welding and deformation of the wire.
A
B
C
Fig. 5.
The influence of the roll groove on the welding wire
A
Correct
B
Wrong
C
Wrong
